Set 31158
Sea Animals
Retired Nov 2025Retail price$29.99What LEGO charged
Worth now$20.20Based on 8 recent sealed sales
Asking now$29.40Typical price on 31 eBay listings
vs retail−33%Worth less than shop price
No retail price on file
Worth $20 today, but without a retail price there's nothing to judge that against.
How much is LEGO 31158 Sea Animals worth?
LEGO 31158 Sea Animals is worth about $20.20 sealed right now, based on 8 recent sealed sales. That's 33% below its $29.99 retail price. It came out in 2024 with 421 pieces. It was retired in Nov 2025. Over the last 81 days its typical asking price has risen 5%, from $28.00 to $29.40. We last checked it 9 days ago.
Price history
Value history
Oct 17$2931 listings
- Lowest
- $27
- Highest
- $30
- Change
- +5%
- Asking vs retail
- -2%
26 observations · median asking · rechecked 8× daily
Should you buy it?
Sellers want $29, but it’s actually been going for $20. Offer low.
If you bought it to resell
Sells sealed for$20
Marketplace fees · 15.25%−$3
Payment processing · 2.9% + $0.30−$1
Shipping · est. from 421 pieces−$13
Reaches you$3
Pay no more than$2
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sealed
$20
8 sold in six months · $16–$22Used
$8
1 sold in six monthsSellers are asking 46% more than buyers actually paid. The $29 figure above is a ceiling; this is the floor to negotiate toward.
Completed BrickLink transactions over the last six months. Real sales, not asking prices.
Set details
- Set number
- 31158
- Theme
- Creator · Creator 3-in-1
- Released
- 2024
- Status
- Retired Nov 2025
- Pieces
- 421
- Minifigures
- —
- Retail price
- $29.99
- Value per piece
- $0.07
- Price confidence
- high · 31 listings
- Last checked
- 9 days ago
Where these numbers come from
eBay31 live listingsThe asking price here — the median of what sellers want right now, $29. Last checked Oct 17.See the listings →BrickLink8 completed salesWhat it actually sold for — $20 across six months of real transactions. Last checked Oct 23.Open the price guide →Catalogue421 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $30.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
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